java.lang.Object
- org.springframework.test.util.MetaAnnotationUtils.AnnotationDescriptor<T>

直接已知子类:
MetaAnnotationUtils.UntypedAnnotationDescriptor
封闭类:
MetaAnnotationUtils
```
public static class MetaAnnotationUtils.AnnotationDescriptor<T extends Annotation>
extends Object
```
Descriptor for an Annotation, including the class on which the annotation is declared as well as the actual annotation instance.
If the annotation is used as a meta-annotation, the descriptor also includes the composed annotation on which the annotation is present. In such cases, the root declaring class is not directly annotated with the annotation but rather indirectly via the composed annotation.
Given the following example, if we are searching for the @Transactional annotation on the TransactionalTests class, then the properties of the AnnotationDescriptor would be as follows.
- rootDeclaringClass: TransactionalTests class object
- declaringClass: TransactionalTests class object
- composedAnnotation: null
- annotation: instance of the Transactional annotation
```
 @Transactional
 @ContextConfiguration({"/test-datasource.xml", "/repository-config.xml"})
 public class TransactionalTests { }
 
```
Given the following example, if we are searching for the @Transactional annotation on the UserRepositoryTests class, then the properties of the AnnotationDescriptor would be as follows.
- rootDeclaringClass: UserRepositoryTests class object
- declaringClass: RepositoryTests class object
- composedAnnotation: instance of the RepositoryTests annotation
- annotation: instance of the Transactional annotation
```
 @Transactional
 @ContextConfiguration({"/test-datasource.xml", "/repository-config.xml"})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface RepositoryTests { }

 @RepositoryTests
 public class UserRepositoryTests { }
 
```

构造器概要

构造器
构造器	说明
`AnnotationDescriptor(Class<?> rootDeclaringClass, Class<?> declaringClass, Annotation composedAnnotation, T annotation)`
`AnnotationDescriptor(Class<?> rootDeclaringClass, T annotation)`

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`T`	`getAnnotation()`
`AnnotationAttributes`	`getAnnotationAttributes()`
`Class<? extends Annotation>`	`getAnnotationType()`
`Annotation`	`getComposedAnnotation()`
`Class<? extends Annotation>`	`getComposedAnnotationType()`
`Class<?>`	`getDeclaringClass()`
`Class<?>`	`getRootDeclaringClass()`
`T`	`synthesizeAnnotation()`	Synthesize the merged `AnnotationAttributes` in this descriptor back into an annotation of the target annotation type.
`String`	`toString()`	Provide a textual representation of this `AnnotationDescriptor`.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

AnnotationDescriptor

public AnnotationDescriptor(Class<?> rootDeclaringClass,
                            T annotation)

AnnotationDescriptor

public AnnotationDescriptor(Class<?> rootDeclaringClass,
                            Class<?> declaringClass,
                            Annotation composedAnnotation,
                            T annotation)

方法详细资料
- getRootDeclaringClass
```
public Class<?> getRootDeclaringClass()
```
- getDeclaringClass
```
public Class<?> getDeclaringClass()
```
- getAnnotation
```
public T getAnnotation()
```
- synthesizeAnnotation
```
public T synthesizeAnnotation()
```
  Synthesize the merged AnnotationAttributes in this descriptor back into an annotation of the target annotation type.
  从以下版本开始:
  4.2
  另请参阅:
  getAnnotationAttributes(), getAnnotationType(), AnnotationUtils.synthesizeAnnotation(java.util.Map, Class, java.lang.reflect.AnnotatedElement)
- getAnnotationType
```
public Class<? extends Annotation> getAnnotationType()
```
- getAnnotationAttributes
```
public AnnotationAttributes getAnnotationAttributes()
```
- getComposedAnnotation
```
public Annotation getComposedAnnotation()
```
- getComposedAnnotationType
```
public Class<? extends Annotation> getComposedAnnotationType()
```
- toString
```
public String toString()
```
  Provide a textual representation of this AnnotationDescriptor.
  覆盖:
  toString 在类中 Object

类 MetaAnnotationUtils.AnnotationDescriptor<T extends Annotation>

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

AnnotationDescriptor

AnnotationDescriptor

方法详细资料

getRootDeclaringClass

getDeclaringClass

getAnnotation

synthesizeAnnotation

getAnnotationType

getAnnotationAttributes

getComposedAnnotation

getComposedAnnotationType

toString